Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Low-carbon spheroidized masonry cement and preparation method thereof
The invention provides low-carbon spheroidized masonry cement and a preparation method thereof. The low-carbon spheroidized masonry cement has the particle size and interval accumulative distribution as follows: the proportion of the low-carbon spheroidized masonry cement less than 3 microns is 14-25%, and the proportion of the low-carbon spheroidized masonry cement less than 32 microns is 54-70%; the screen residue of a 45-micron square hole sieve is 12-24%; the average circularity is 0.76 to 0.90, and the average length-diameter ratio is 1.31 to 1.60; the water retention rate is not less than 85%, and the mortar fluidity is not less than 200 mm. Grinding is carried out by adopting an open-circuit process or a closed-circuit process. By optimizing the particle size distribution of the low-carbon spheroidized masonry cement in the preparation process, the particle size distribution is more reasonable, the length-diameter ratio and circularity distribution interval of particles are small, the particle morphology is obviously improved, the water demand of the cement is obviously reduced, the mortar fluidity is obviously improved, and the cement quality is improved; the working performance of concrete can be obviously improved when used for concrete.
本发明提供一种低碳球形化砌筑水泥及其制备方法，所述低碳球形化砌筑水泥的粒径及区间累计分布为：＜3μm占比14‑25％，＜32μm占比54‑70％；45μm方孔筛筛余12‑24％；平均圆形度0.76‑0.90，平均长径比1.31‑1.60；保水率≥85％，胶砂流动度≥200mm。本发明采用开路工艺或闭路工艺进行研磨。本发明通过在制备过程中对低碳球形化砌筑水泥粒径分布进行优化，粒径分布更加合理，且颗粒长径比和圆形度分布区间小，明显改善颗粒形貌，明显降低水泥需水量，胶砂流动度明显提高，提升水泥品质，用于混凝土可明显改善混凝土工作性能。
Low-carbon spheroidized masonry cement and preparation method thereof
The invention provides low-carbon spheroidized masonry cement and a preparation method thereof. The low-carbon spheroidized masonry cement has the particle size and interval accumulative distribution as follows: the proportion of the low-carbon spheroidized masonry cement less than 3 microns is 14-25%, and the proportion of the low-carbon spheroidized masonry cement less than 32 microns is 54-70%; the screen residue of a 45-micron square hole sieve is 12-24%; the average circularity is 0.76 to 0.90, and the average length-diameter ratio is 1.31 to 1.60; the water retention rate is not less than 85%, and the mortar fluidity is not less than 200 mm. Grinding is carried out by adopting an open-circuit process or a closed-circuit process. By optimizing the particle size distribution of the low-carbon spheroidized masonry cement in the preparation process, the particle size distribution is more reasonable, the length-diameter ratio and circularity distribution interval of particles are small, the particle morphology is obviously improved, the water demand of the cement is obviously reduced, the mortar fluidity is obviously improved, and the cement quality is improved; the working performance of concrete can be obviously improved when used for concrete.
本发明提供一种低碳球形化砌筑水泥及其制备方法，所述低碳球形化砌筑水泥的粒径及区间累计分布为：＜3μm占比14‑25％，＜32μm占比54‑70％；45μm方孔筛筛余12‑24％；平均圆形度0.76‑0.90，平均长径比1.31‑1.60；保水率≥85％，胶砂流动度≥200mm。本发明采用开路工艺或闭路工艺进行研磨。本发明通过在制备过程中对低碳球形化砌筑水泥粒径分布进行优化，粒径分布更加合理，且颗粒长径比和圆形度分布区间小，明显改善颗粒形貌，明显降低水泥需水量，胶砂流动度明显提高，提升水泥品质，用于混凝土可明显改善混凝土工作性能。
Low-carbon spheroidized masonry cement and preparation method thereof
一种低碳球形化砌筑水泥及其制备方法
SUN ZHISHENG (Autor:in) / ZHU WENSHANG (Autor:in) / MA ZHAOMU (Autor:in) / MA HAIJUN (Autor:in) / WANG XINGQIN (Autor:in) / WU HONG'AN (Autor:in) / LUO MINGYANG (Autor:in) / LIU ANQI (Autor:in) / WU YUXIANG (Autor:in)
02.04.2024
Patent
Elektronische Ressource
Chinesisch
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